DHR B Class

Specifications
Specifications
Configuration:;
• Whyte	0-4-0ST
• UIC	B n2t
Gauge	2 ft (610 mm)
Driver dia.	26 in (0.660 m)
Axle load	7.75 long tons (7.87 t)
Loco weight	14 long tons (14 t)
Firebox:
• Grate area	9 sq ft (0.84 m2)
Boiler pressure	140 psi (0.97 MPa)
Heating surface	316 sq ft (29.4 m2)
Superheater	None
Cylinders	Two, outside
Cylinder size	11 in × 14 in (279 mm × 356 mm)

Type and origin
Type and origin
Power type	Steam
Builder	Sharp, Stewart & Co. (12); North British Locomotive Co. (16); Baldwin Locomotive Works (3); DHR Tindharia Works (3);
Build date	1889–1925
Total produced	34

DHR B Class
DHR B Class
	No. 792 hauling a school train, 2005
Power type
Type and origin
Power type	Steam
Builder	Sharp, Stewart & Co. (12); North British Locomotive Co. (16); Baldwin Locomotive Works (3); DHR Tindharia Works (3);
Build date	1889–1925
Total produced	34
Configuration:;
Specifications
Configuration:;
• Whyte	0-4-0ST
• UIC	B n2t
Gauge	2 ft (610 mm)
Driver dia.	26 in (0.660 m)
Axle load	7.75 long tons (7.87 t)
Loco weight	14 long tons (14 t)
Firebox:
• Grate area	9 sq ft (0.84 m2)
Boiler pressure	140 psi (0.97 MPa)
Heating surface	316 sq ft (29.4 m2)
Superheater	None
Cylinders	Two, outside
Cylinder size	11 in × 14 in (279 mm × 356 mm)
Tractive effort
Performance figures
Tractive effort	7,750 lbf (34.47 kN)
Operators
Career
Operators	Darjeeling Himalayan Railway; → Indian Railways;
Class	B
Numbers	DHR: 17–30, 32–36, 39–53; All-India: 777–806;
Disposition	Some still in service

The DHR B Class is a famous class of 2 ft (610 mm) gauge 0-4-0ST saddle tank steam locomotives used on the Darjeeling Himalayan Railway (DHR) in West Bengal, India.

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